/* ===========================================
   Tree Launcher — Shared Styles
   =========================================== */

/* CSS Custom Properties */
:root {
  --green-900: #1B5E20;
  --green-700: #2E7D32;
  --green-500: #43A047;
  --green-300: #66BB6A;
  --green-100: #A5D6A7;
  --green-50: #E8F5E9;
  --neutral-900: #0F1A1F;
  --neutral-800: #1A2830;
  --neutral-700: #555555;
  --neutral-200: #E0E0E0;
  --neutral-100: #F7F8F6;
  --white: #FFFFFF;
  --amber-500: #D4A843;
  --amber-100: #FFF8E7;
  --trunk: #5D4037;
  --text-primary: #1A1A2E;
  --text-secondary: #555555;
  --text-tertiary: #888888;
}

/* Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  color: var(--text-primary);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ===========================================
   Navigation
   =========================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 64px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: background 0.3s;
}
.nav-inner {
  max-width: 1200px; width: 100%; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px; text-decoration: none;
}
.nav-logo-img { width: 28px; height: auto; }
.nav-logo span {
  font-size: 17px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.3px;
}
.nav-links {
  display: flex; align-items: center; gap: 32px;
}
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  text-decoration: none; transition: color 0.2s;
}
.nav-links a:hover { color: var(--green-700); }
.nav-links a.active { color: var(--green-700); }
.nav-links a.nav-cta {
  background: var(--green-700); color: #FFFFFF; padding: 10px 22px;
  border-radius: 10px; font-size: 14px; font-weight: 500;
  text-decoration: none; transition: background 0.2s, transform 0.15s;
}
.nav-links a.nav-cta:hover {
  background: var(--green-900); color: #FFFFFF; transform: translateY(-1px);
}

/* Mobile nav toggle */
.nav-mobile-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 32px; height: 32px; background: none; border: none;
  cursor: pointer; padding: 4px;
}
.nav-mobile-toggle span {
  display: block; width: 100%; height: 2px;
  background: var(--text-primary); border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-mobile-toggle.open span:nth-child(2) { opacity: 0; }
.nav-mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===========================================
   Buttons
   =========================================== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--green-700); color: white; padding: 16px 32px;
  border-radius: 12px; font-size: 16px; font-weight: 500;
  text-decoration: none; transition: all 0.2s; border: none; cursor: pointer;
}
.btn-primary:hover {
  background: var(--green-900); transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(46,125,50,0.3);
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--green-700); padding: 16px 24px;
  font-size: 16px; font-weight: 500; text-decoration: none;
  transition: color 0.2s;
}
.btn-secondary:hover { color: var(--green-900); }

/* ===========================================
   Footer
   =========================================== */
.footer {
  background: var(--neutral-900);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 24px 32px;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.footer-brand p {
  font-size: 14px; color: rgba(255,255,255,0.4);
  line-height: 1.6; margin-top: 12px; max-width: 280px;
}
.footer h5 {
  font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.7);
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px;
}
.footer a {
  display: block; font-size: 14px; color: rgba(255,255,255,0.4);
  text-decoration: none; padding: 4px 0; transition: color 0.2s;
}
.footer a:hover { color: var(--green-300); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-bottom span { font-size: 13px; color: rgba(255,255,255,0.3); }
.footer-bottom a { display: inline; padding: 0; }

/* ===========================================
   Animations
   =========================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate.visible { opacity: 1; transform: translateY(0); }

/* ===========================================
   Responsive — Shared
   =========================================== */
@media (max-width: 768px) {
  .nav-mobile-toggle { display: flex; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(255,255,255,0.97); backdrop-filter: blur(16px);
    flex-direction: column; padding: 16px 24px 24px; gap: 8px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; font-size: 16px; }
  .nav-links a.nav-cta { text-align: center; margin-top: 8px; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
}